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1、 as和which的區(qū)別和用法一、as, which 指代整個句子或短語。 由as, which 引導(dǎo)的非限定性定語從句，相當于and this或and that。在許多時候，表示說話人對話語的看法或態(tài)度，此時它們的先行詞并不是詳細的某個詞，而是整個句子或短語： The Chinese government has decided to develop the west of China, which, I dare say, will benefit the people there, especially those who are still leading a poor life. 中

2、國政府打算開發(fā)西部，我敢說，這將造福于西部的人民，特殊是那些至今過著貧困生活的人。 She has married again，which delighted us她又結(jié)婚了，這使我們很快樂。 John said he d been working in the office for an hour，which was true The result of the experiment was very good， which we hadnt expected Carol said the work would be done by October，which personally I do

3、ubt very much 二、as, which 用在句末的時候，有些狀況下可以互換使用。 He was late for school，as/which was usual with him他上學(xué)遲到，這是家常便飯。 He was a foreigner，as/which I knew from his accent他是個外國人，我從他的口音中得知這一點。 I live a long way from work，as/which you know我離上班的地方很遠，你是知道這一點的。 The author was brought up in a small village, as/whic

4、h is recounted in some of his stories. 是在一個小村莊里長大的，這個問題在他的一些小說了就被提到過。 但是，當主句是否認句時，只能as。例如： Spiders are not insects, as many people think. 蜘蛛不是昆蟲，而很多人卻認為蜘蛛是昆蟲。 三、as 的特別用法。 1、假如要說明兩者有相像之處時通常用as，表達“正如（情形或事實所表示）的那樣、像的一樣”的意思。例如： She is a fine singer，as her mother used to be她是一個很精彩的唱歌家，和她母親當年一樣。 She is th

5、e same age as you (are). 她和你年齡一樣大。與same.as 連用 I hope to get such a dictionary as he is using. 我盼望有一本和你正在用的一樣的詞典。與such.as連用 As water is to fish, so air is to man. 正如水對魚一樣重要，空氣對于人同樣重要。 She has married again，as was/seemed natural她又結(jié)婚了，這很自然。 2、as常與從句中的know，see， hear，expect等動詞連用，也常用于as often happens，as i

6、s often the case（常有的事）等句子中。 As you know, he is from Beijing. 正如你所知道的，他來自北京。 As is known to everybody，the moon travels round the earth once every month He was absent，as is often the case他沒有上學(xué)，這是常事。 As you will find out, all is now settled. 你將會看到這樣的狀況，一切都已搞定了。 3、as引導(dǎo)的非限制性定語從句的位置比擬敏捷，既可位于所修飾的句子之后，也可位于句中或句首；而由 which引導(dǎo)的非限制性定語從句一般不位于句首。例如： As you will find out，I will never let you down你將會發(fā)覺，我絕不會使你絕望的。 4、as所引導(dǎo)的從句所表達的語意須和主句全都，而 which則無此限制。例如： She has married again，which was unexpected她又結(jié)婚了，真不行思議。（此處不行用 as） 通過以上的學(xué)習(xí)，我們了解到了as和which它們的區(qū)分和各自的用法，以及它們所引導(dǎo)的從句的區(qū)分。